The procedure for obtaining the lenticular elements in relief required a series of steps: starting from three black and white positive color separations, obtained with any of the available methods, three matrices were printed, from which the film to ...
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Projection of lenticular film in Bocca-Rudatis. Refraction of light beams through lens. Source: Pierotti, Federico (2016): Un'archeologia del colore nel cinema italiano. Dal Technicolor ad Antonioni. Pisa: Edizioni ETS, p. 81.